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Finding the Fourth Proportional to 68,940.30, 103,419.27 and 24,571.53

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Solution

The fourth proportional to 68,940.30, 103,419.27 and 24,571.53 is: 36,860.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,940.30 : 103,419.27 = 24,571.53 : x
  2. Step 2: Convert to fraction form
    68,940.30/103,419.27 = 24,571.53/x
  3. Step 3: Cross multiply
    68,940.30x = 103,419.27 × 24,571.53
  4. Step 4: Simplify right side
    68,940.30x = 2,541,169,695.38
  5. Step 5: Solve for x
    x = 2,541,169,695.38/68,940.30
  6. Step 6: Final answer
    x = 36,860.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.